A foot holding assembly for securing a foot of a patient during a surgical or diagnostic procedure includes a boot configured to hold the foot of the patient. In addition the assembly includes a rigid sole coupled to the boot. Further, the assembly includes a pivot arm having a first end rotatably coupled to the sole with a rotatable coupling configured to allow the sole to rotate relative to the first end of the pivot arm about an axis oriented perpendicular to the sole. The rotatable coupling includes an incremental locking mechanism including a locked position and an unlocked position. When the incremental locking mechanism is in the locked position, the rotational position of the sole about the axis is releasably locked. When the incremental locking mechanism is in the unlocked position, the sole is free to rotate relative the first end of the pivot arm only about the axis.